Isolated DC-DC converter

26 May 2010 Power Electronics / Power Management

Picor, a subsidiary of Vicor specialising in the design and development of high-performance power management solutions, has developed the PI3101 Cool-Power high-density isolated DC-DC converter, targeted at end-systems such as advanced telecom and wireless infrastructure, networking and communications, power-over-Ethernet applications and high-speed server platforms.

Delivering a regulated 3,3 V output at up to 18 A output current, from a wide input voltage range of 36 V to 75 V d.c., the device achieves 25 W/cm² power density and optimises board area by providing 16,5 W/cm². The PI3101 combines isolation, voltage transformation and output regulation into a surface-mount power-system-in-package (PSiP) platform with a footprint of 3,6 cm² and low profile of 6,7 mm.

The Cool-Power family is built on a proprietary ZVS topology using advanced control silicon integration, state-of-the-art planar magnetics and high performance power semiconductor technology, enabling switching frequencies in excess of 1 MHz with up to 87% efficiency. Fast transient response to dynamic loads limits the requirement for output bulk capacitance and EMI performance is improved due to the inherent low-noise and high-frequency characteristics of the product.

The PI3101 is fully equipped with a variety of programmable features including ±10% output voltage trimming, programmable soft-start capability, remote on/off enable and an accurate temperature monitor function that provides an analog output voltage proportional to the internal temperature of the product, serving also as a fault alarm. It is self-protected against various fault conditions, including input over-voltage and under-voltage lockout with auto-restart capability, over-temperature and output over-voltage protection with auto restart capability and a dual current limit threshold to protect against short circuits and overload conditions.

For more information contact ECS, +27 (0)12 345 6132, [email protected], www.ecssa.co.za

Further reading:

Analysis of switch-mode power supply: inductor violations
Altron Arrow Editor's Choice Power Electronics / Power Management
Common switch-mode power supply (SMPS) design errors are discussed, and their appropriate rectification is specified, with details on complications that arise with the power stage design of DC-DC switching regulators.

Read more...

---

Compact PCB-mount SMPS
RS South Africa Power Electronics / Power Management
Traco Power’s 5W PCB-mount switch mode power supply (SMPS) offers high efficiency, and is well suited for a variety of applications in the automation, electronics, electrical and mechanical industries.

Read more...

---

AC-DC brick PSU
Conical Technologies Power Electronics / Power Management
These PSUs have a typical efficiency of up to 92%, and a power factor value of up to 0,99. They are available in 12, 24, 28, 48 and 54 V output versions.

Read more...

---

5 kW switching PSU range
Conical Technologies Power Electronics / Power Management
Mornsun has released a new switching power supply range, the LMF5000-25Bxx, which has a 5000 W capacity, and features universal AC input configurations.

Read more...

---

Reliable charging range
Current Automation Power Electronics / Power Management
Whether you’re powering essential electronics, keeping emergency equipment operational, or maintaining the performance of critical machinery, the need for dependable charging solutions cannot be overstated.

Read more...

---

Microchip expands its mSiC solutions
EBV Electrolink Power Electronics / Power Management
The highly integrated 3,3 kV XIFM plug-and-play digital gate driver is designed to work out-of-the-box with high-voltage SiC-based power modules to simplify and speed system integration.

Read more...

---

Dual-port USB-C power delivery solution
Altron Arrow Power Electronics / Power Management
Infineon’s CYPD7272-68LQXQ is the tray packing option of the company’s dual-port USB-C power delivery solution and features an integrated dual-port USB-C PD + DC-DC controller.

Read more...

---

Parallel redundancy power module
Conical Technologies Power Electronics / Power Management
The LIR40-40 is a wide input range DC-DC module, with a constant output of 48 V at a nominal output current of up to 40 A.

Read more...

---

Motor protection relay front-end
NewElec Pretoria Power Electronics / Power Management
Newelec’s Motor Protection Relay front-end software isn’t just another tool, it’s a game changer that puts control firmly in your hands.

Read more...

---

High-power three-phase supplies
Current Automation Power Electronics / Power Management
The units from Meanwell can either be supplied with a three-phase three-wire delta input of 196 to 305 V AC, or they can use a three-phase four-wire star connection of 340 to 530 V AC.

Read more...

---